Patent application number | Description | Published |
20100002073 | Blur enhancement of stereoscopic images - A method and apparatus for selectively blurring parts of an image set according to differences in disparity between successive images. As a result, the one-dimensional ‘ringing’ edge artifacts, intrinsic to autostereoscopic displays, are hidden, thereby improving the perceived image quality of a multi-view autostereoscopic image. The method may involve detecting regions of disparity between adjacent views, and then blurring those regions by weighted local pixel averaging. The relationship between the blur radius and the disparity is preferentially non-linear to maintain sharpness of low disparity regions. | 01-07-2010 |
20100039698 | Autostereoscopic display system with efficient pixel layout - The present disclosure is directed to autostereoscopic display systems operable to provide increased number of views and related methods. One embodiment of the display systems comprises a light-modulating display panel comprising a first set of colored subpixels and a second set of colored subpixels, and the number of subpixels in the first set of colored subpixels is greater than the number of subpixels in the second set of colored subpixels. The display system further comprises a lenticular sheet disposed in light paths of the colored subpixels of the display panel. | 02-18-2010 |
20100097545 | Lenticular display systems with offset color filter array - Disclosed are various lenticular display systems that include either a color filter array (CFA) or a colored lens array that is spaced from the pixels of an underlying display panel. In an embodiment, the CFA of a lenticular display may be operable to provides a locally ‘static color’ reproduction of images as a function of viewing angle. It may also enable the resolution of the CFA to be relatively coarse. Both separating the CFA from the panel and reducing the resolution significantly may reduce the system cost and allow higher resolution to be realized. | 04-22-2010 |
20100103516 | Head-tracking enhanced stereo glasses - Stereoscopic display systems including a position-tracking system that determine the position of the stereoscopic eyewear worn by a viewer. An exemplary embodiment of the eyewear includes retro-reflective reflectors that are illuminated by an infrared illuminator proximate to or optically co-axial with a capturing camera. Suppression reflections from other reflective features in the vicinity may be achieved by control of the polarization of the infrared light. | 04-29-2010 |
20100141856 | Stereoscopic projection systems for employing spatial multiplexing at an intermediate image plane - Proposed are various embodiments of projection systems that generally provide stereoscopic images. The projection systems act to split a spatially separated image in a stereoscopic image frame and superimpose the left- and right-eye images on a projection screen with orthogonal polarization states. The embodiments are generally well suited to liquid crystal polarization based projection systems and may use advanced polarization control. | 06-10-2010 |
20100208044 | Stereoscopic systems for anaglyph images - Encoding left and right eye stereoscopic image pairs into a color coded ‘anaglyph’ image allows for 3-D viewing through colored eyewear. The color mapping may be tailored locally to specific eyewear and display hardware and generates anaglyph output from distributed full-color left and right eye stereoscopic data. In an exemplary embodiment, determination of eyewear may involve viewer interaction through visual inspection of displayed calibration images or by other means. Left and right eye data may be mapped onto high quality anaglyph images. The overall approach attempts to provide a consistent, good quality stereoscopic experience for different displays and eyewear. | 08-19-2010 |
20100260268 | Encoding, decoding, and distributing enhanced resolution stereoscopic video - This disclosure generally relates to stereoscopic images and stereoscopic video signals, and more specifically relates to encoding, distributing, and decoding stereoscopic images and stereoscopic video signals for use in television and high definition television systems, teleconferencing, picture phones, computer video transmission, digital cinema, as well as in other applications that include storage and/or transmission, over any suitable medium, of still or moving stereoscopic images, or combinations of moving and still stereoscopic images, in a form that is compatible with existing infrastructure, without requiring additional system functionality, while providing a means to allow higher resolution images to be distributed while maintaining compatibility with the existing infrastructure. The techniques hereof can be employed, for example, for distributing stereo 3D movies via optical disk, satellite, broadcast, cable, or internet, using current infrastructure, to consumers. | 10-14-2010 |
20100328561 | Stereoscopic projection system employing spatial multiplexing at an intermediate image plane - Projection systems and methods for providing stereoscopic images viewed through passive polarizing eyewear. The systems relate to projectors that create left and right eye images simultaneously and often as side-by-side images on the image modulator. The systems act to superimpose the spatially separated images on a projection screen with alternate polarization states. The embodiments are best suited to liquid crystal polarization based projection systems and use advanced polarization control. | 12-30-2010 |
20120236240 | Liquid crystal devices having reduced electrode-gap visibility - Liquid crystal devices may include electrode segments that are spaced apart and have a gap therebetween. A bridge layer may be disposed in the gap and configured to have a resistance that is operable provide a substantially equipotential region proximate to the gap portion while still allowing the electrode segments to be substantially isolated electrically. The disclosed liquid crystal devices may have reduced visual artifacts and may be configured to be a liquid crystal display, a polarization control panel, or a switch having liquid crystal cells. | 09-20-2012 |
20120293753 | Drive scheme for stereoscopic display polarization modulator and apparatus for same - An improved drive scheme for a segmented polarizing modulator (or Polarization Control Panel) for use in an electronic stereoscopic display. The segmented polarization modulator segments are arranged contiguously in a direction of the sequential scan. The liquid crystal material used in each segment is driven in a manner to reduce the visibility of segment boundaries, by applying a positive or negative transition voltage (+T or −T volts) for a short period of time prior to applying +H and −H drive voltages. Optionally, the transition voltage may also be applied in transitioning from +H and −H drive voltages. | 11-22-2012 |
20130002996 | Boundary artifact suppression in segmented liquid crystal modulators - Disclosed herein are apparatuses and related methods for avoiding liquid crystal molecule twisting through local boundary orientation relevant to the alignment direction of liquid crystal structures. In one embodiment, a segmented polarization control panel may comprise a plurality of segment electrodes corresponding to a plurality of display segments of the sequentially scanning display. The plurality of segment electrodes comprise liquid crystals therein, and are arranged contiguously in a direction of the sequential scan. Electrode boundaries are created between adjacent segment electrodes, where each may be cascaded substantially parallel and perpendicular to a liquid crystal alignment direction of liquid crystals located within the segments. Preventing twisting by the disclosed techniques is particularly attractive in active retarder display systems employing fast striped pi-cell modulators. | 01-03-2013 |
20130222709 | Stereoscopic projection system employing spatial multiplexing at an intermediate image plane - Projection systems and methods for providing stereoscopic images viewed through passive polarizing eyewear. The systems relate to projectors that create left and right eye images simultaneously and often as side-by-side images on the image modulator. The systems act to superimpose the spatially separated images on a projection screen with alternate polarization states. The embodiments are best suited to liquid crystal polarization based projection systems and use advanced polarization control. | 08-29-2013 |
20130235284 | Stereoscopic projection systems and methods for employing spatial multiplexing at an intermediate image plane - Proposed are various embodiments of projection systems that generally provide stereoscopic images. The projection systems act to split a spatially separated image in a stereoscopic image frame and superimpose the left- and right-eye images on a projection screen with orthogonal polarization states. The embodiments are generally well suited to liquid crystal polarization based projection systems and may use advanced polarization control. | 09-12-2013 |
20130265528 | Lenticular display systems with offset color filter array - Disclosed are various lenticular display systems that include either a color filter array (CFA) or a colored lens array that is spaced from the pixels of an underlying display panel. In an embodiment, the CFA of a lenticular display may be operable to provides a locally ‘static color’ reproduction of images as a function of viewing angle. It may also enable the resolution of the CFA to be relatively coarse. Both separating the CFA from the panel and reducing the resolution significantly may reduce the system cost and allow higher resolution to be realized. | 10-10-2013 |
20140118505 | Stereoscopic image capture - The present application provides a single lens capture device having a single input port. The single lens capture device may include an objective lens, a fixed objective lens aperture, off-center apertures inside the objective lens, and a sensor. The sensor is operable to capture images at a rate of at least two times the rate of stereoscopic presentation. | 05-01-2014 |
20140362437 | System and method for vibrating screens to reduce speckle - The present disclosure includes systems and methods for solving speckle problems by exciting the screen with a more complex vibration spectrum. A range of frequencies provides, in effect, a collection of overlapping patterns of high and low displacement, so that all regions of the screen have enough motion to reduce visible speckle. As previously discussed acceptable speckle may be approximately 15% contrast or less, preferably approximately 5% contrast or less at approximately 15 feet from the screen. | 12-11-2014 |